Michael McLoughlin 57c23b967e pass: add PruneSelfMoves cleanup pass (#80) ...

In some cases natural use of abstraction in avo programs can lead to redundant move instructions, specifically self-moves such as MOVQ AX, AX. This does not produce incorrect code but it is incorrect and inelegant.

This diff introduces a PruneSelfMoves pass that removes such unnecessary instructions.

Closes #76

2019-04-14 14:26:28 -07:00

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